hello world

neo/framework/EventLoop.h

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+/*
+===========================================================================
+
+Doom 3 GPL Source Code
+Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company. 
+
+This file is part of the Doom 3 GPL Source Code (?Doom 3 Source Code?).  
+
+Doom 3 Source Code is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+Doom 3 Source Code is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Doom 3 Source Code.  If not, see <http://www.gnu.org/licenses/>.
+
+In addition, the Doom 3 Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 Source Code.  If not, please request a copy in writing from id Software at the address below.
+
+If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
+
+===========================================================================
+*/
+
+#ifndef __EVENTLOOP_H__
+#define __EVENTLOOP_H__
+
+/*
+===============================================================================
+
+	The event loop receives events from the system and dispatches them to
+	the various parts of the engine. The event loop also handles journaling.
+	The file system copies .cfg files to the journaled file.
+
+===============================================================================
+*/
+
+const int MAX_PUSHED_EVENTS =	64;
+
+class idEventLoop {
+public:
+					idEventLoop( void );
+					~idEventLoop( void );
+
+	void			Init( void );
+
+					// Closes the journal file if needed.
+	void			Shutdown( void );
+
+					// It is possible to get an event at the beginning of a frame that
+					// has a time stamp lower than the last event from the previous frame.
+	sysEvent_t		GetEvent( void );
+
+					// Dispatches all pending events and returns the current time.
+	int				RunEventLoop( bool commandExecution = true );
+
+					// Gets the current time in a way that will be journaled properly,
+					// as opposed to Sys_Milliseconds(), which always reads a real timer.
+	int				Milliseconds( void );
+
+					// Returns the journal level, 1 = record, 2 = play back.
+	int				JournalLevel( void ) const;
+
+					// Journal file.
+	idFile *		com_journalFile;
+	idFile *		com_journalDataFile;
+
+private:
+					// all events will have this subtracted from their time
+	int				initialTimeOffset;
+
+	int				com_pushedEventsHead, com_pushedEventsTail;
+	sysEvent_t		com_pushedEvents[MAX_PUSHED_EVENTS];
+
+	static idCVar	com_journal;
+
+	sysEvent_t		GetRealEvent( void );
+	void			ProcessEvent( sysEvent_t ev );
+	void			PushEvent( sysEvent_t *event );
+};
+
+extern	idEventLoop	*eventLoop;
+
+#endif /* !__EVENTLOOP_H__ */